Apparently my mother rang me at 9.30 which I didn't hear but I did catch the 10.30 ring! Too late though. And then wondered if that was an emergency or not.
Called her back this morning in response to her 'where are you' text and she says - I never would have believed you were *asleep*!! Yeah. I figured out that I hit burn out at about 1.45 pm yesterday.
Looots of sleep last night, although not undisturbed, and I feel much more normal today.